// IBookManager.aidl
package com.dreamweaver.aidlserver;
import com.dreamweaver.aidlserver.Book;
// Declare any non-default types here with import statements

// 专门用来研究in、out、inout的aidl文件，通过查阅build/generated/aidl_source_output_dir里面自动生成的
//  IBookManager.java文件，可以清楚的看出in、out、inout的不同效果
interface IBookManager {
   Book addBookIn(in Book book,in Book book2);
   Book addBookOut(out Book book,out Book book2);
   Book addBookInout(inout Book book,inout Book book2);
}